Socket construction.



F. BARR. SOFT-3E1 UONSTRUGTIONf APPLICATION FILED 11176.2, 1912.

i Pat nsq June 10, 1913.

m m m w .1s interlocked with the cap and adapted to ing the improvements of my invention, the

UNITED STATES PATENT OFFICE.

FREDERIC BARR, OF NEW YORK, N. Y.

SDOKET CONSTRUCTIUII.

Application filed August 2,

To a whom it may (-onw/n Be it known that l, linsnnmo lmnn, a citizen of the United States of America, and residing at New York in the county of Kings and State of New York, have in ented new. and useful linproveinent's in Socket Construction, of which the following is a specification.

My invention relates parti'.'-ul-.11ly to the method of interlocking the parts and holding in place the insulating lining of an. electric lamp socket or switch socket.

()no object is to provide a simple, ine. pensive and readily operable means for in Lei-locking the body and cap cl a siit'hvi Slltll and l'mlding the parts securely in position but so that they may be readily separated when desired. Another object is to secure the insulating lining in the cap in such a manner that it is not likely to be a cident-- ally lost but that it may be rem ved when desired. Another object is to hold the lining in the body in a simple manner.

In the form shown all the above objects are carried out by a simple method of construction. The body and cap are formed so as to telescope, the cap being provided with an interior flange and-the body with a number of projections to engage the flange, the flange and projections being so formed and' arranged that the body can be raidil y insorted in the cap but will interlock autoinat ically and the body being resilient so that. it may be compressed to disengage one of the shoulders and permit separation of the arts. A ring is provided in the cap which be interlocked with the upper edge of the body of the shell to prevent relative rotation. This ring also holds in place the insulating'liningin the cap. The lining in the body of the shell may be held in place by a log or lugs at the upper edge and the formation of these lugs may provide the notches to interlock with the ring.

Figure 1, is a vertical projection and partial section of a lamp socket. shell embodysection being taken on the plane of the line X X of Fig. 2. Fig. 2, 1s a l'n'u'spectlve view of the arts separated. Fig. 3. 1s a fragmentary vertical sectional view showing the interlocking of thering with the cap.

Specification of Letters Patent.

Patented June 10, 1913.

1912. Serial No. 712,856.

Fig. t, is a fragmentary vertical sectional view showing the interlocking 0f the body with the ring. Fig. 5, is a perspective view of the ring detached. Fig. 6, is a fragmentary horizontal section on the plane of the line Y Y of Fig. 3 showing the interlocking of the ring with the cap. Fig. 7, is a itragnientary horizontal section on the plane of the line Z Z of Fig. 4t looking upward.

l ig. 8. is a. fragmentary vertical sectional' ricw showing the method of securing the insulating lining to the ring.

The body 1 of the shell is provided just below its upper edge with two or more projections such as 2. 3 and 4. One of these projections is preferably located in a particularly resilient portion of the body formed for instance by the slot 5. The other projection or projections are formed in the shell opposite the projection 2 and preferably all of these projections are inclined on their upper faces so as to facilitate introduction into the cap. The cap 6 is provided with an interiorly directed marginal flange 7 into which the open end or upper edge of the body of the shell is adapted to be inserted and with which the abrupt lower edges of the shoulders 2, 3 and 4c are ada ited to he interlocked. By compressing the body of the shell adjacent the projection 2 the projections may be disengaged from the flange 7 sufiiciently to permit the body of the shell to beretracted from the cap.

The ring shown in Fig. 5 in the preferred form has a vertical flange 8 adapted to fit within the l'llll 9 ot the cap and to fill the space be tween the rim and the upper edge of the body of the shell so as to prevent the body from being tilted sidewise. The ring also has a horizontal flange 10 which serves as a stop for the upper edge of the body. The ring itself abuts against the annular shoulder 11 in the cap. The ring is prevented from turning in the cap for instance, by being provided with one or more notches such as 12 which interlock with one or more indented shoulders such as 13 in the cap. -By making the ring in split form as shown in Fig. 5 it may be more readily inserted'and taken out when desired and by making it slightly larger than the interior of the rim 9 of the cap and resilient it can he sprung and held frictionally in place. 1

To prevent the body of the shell from details may be made without departing from rotating it is provided with one or more notches such as is which interlock with pro jections such as 15 formed by interiorly directed tongues integral with the ring. To connect the body and cap of the shell, the body is inserted within the rim of the cap until the upper edge of the body engages the projections 15. Either the body or cap is then rotated until the notches such as 14: correspond with the projections such as 15 and if pressure is applied to the parts of the shell they will. be telescoped sulliciently to interlock the projections 2, 3 and t with the flange 7. By supplying four projections such as 15 in the ring and four notches such as 14 in the upper edge of the body of the shell, the introduction and the interlocking of the body without tilting or cramping is facilitated. in the form shown the upper end of the slot 5 performs the function of j one of the notches l-l.

The insulating lining 16 of the body may be conveniently held in place by means of a tongue or lug 17 formed from the metal bent notches 14.

inward from the body to form one of the The insulating lining 18 in the cap may be made o any suitable material such as' porcelain, fiber or paper shaped to correspond with the interior of the cap and it is held in place by the horizontal flange 10 of In case the lining is not secured to the ring if the ring is removed, the ring may he slipped down in the rirn of the cap suiticiently to free the lining from the upper portion oi the cap and the ca may then be tilted soas to remove it. If 1; 1e ring is fastoned in the cap for instance, by solder or otherwise, than in that case the lining cannot be removed from the cap unless it is somewhat flexible or resilient.

In the form shown it will be noted that the rim of the cap performs the function of a longitudinal interlock with the body and also as a housing for the ring. It will also be noted that the ring performs the function of positioning the upper end of the body of the shell and interlocking the body to prevent its rotation, and holding the lin- 'ing of the cap in place.

While I have illustrated and described in detail the preferred form of the invention it should be understood that modifications of the spirit or scope of the invention.

"What I claim is z- 1. In a socket shell, a body having notches in its upper edge and lateral projections near its edge, a cap having an interiorly directed marginal flange for. interlocking with said projections and a ring interlocking with said cap and having horizontal and vertical flanges for positioning the edge of said body and having interiorly directed projections interlocking with the notches in the edge of said body.

2. In a socket shell construction, a cap having a riin with an interior shoulder and an interiorly directed -n'1arginal flange, a loose ring mounted in said rim adjacent said shoulder and of less depth than the distance between said shoulder and said flange, said cap and said ring having interlocking notches and projections preventing relative rotation, said. ring being adapted to be moved away from said shoulder and a body having projections interlocking with said notches and projections preventing relative rotation.

8. In a socket shell construction, a cap, a body having a notched edge telescoping therewith and a ring of angular section with a circumferential flange fitting around the edge of the body and an annular flange acting a stop for the edge of the body, the circumferential flange having one or more projections interlocking with one or more corresponding notches in the edge of the body.

l. in a socket construction, a cap having an interior shoulder and one or, more interiorly directed projections, a movable ring in said' cap abutting against said shoulder and having one or more notches corresponding to the projections in the cap and a body telescoping with said cap and interlocking with said ring to prevent relative rotation and interlocking with said cap to prevent longitudinal separation v 5. In. a socket construction, a body having four equally spaced notches in its open edge and oppositely positioned projections with abrupt edges facing away from said edge and a cap member having a rim with an inwardl Y directed marginal flange and one or more projections in said cap to interlock with tho notches in said body when the projections on. the body interlock with said flange.

6. In a socket construction, a cap and body having interlocking means to prevent longitudinal displacement, an insulating lining in said body, a lug cut from the edge ofsaid body andholding said lining in place and leaving a notch in the edge of said body and a projection in said cap intel-locking tive rotation.

7. In a. socket constructlon, a, cep, a r ng 5 movably secured therein end'an insulatinglining secured to said mug and therewith. 7

8.111 a socket construction, a cap, a rlng iand an insudetachably secured in said ca rmg and re- 10 with said notch to prevent role lating lining secured to sai movable therewith. v

FREDERIG BARB. v V Witnesses: I Y

Rom. S. ALLYN, E. BRADFORD.

movable 1t ishereby certified that in Letters Patent No. 1,064,424, ,gmnted-June 10, I

1913, upon the application of Frede1'ic;Bar1' of New York, N. Y., for an improvement in Socket Construction, au'error appears iii the printedspecification requiring correctiou as follows: Page 2, li'ne 44, for the wordfremoved readrernovable;

and that the said Letters Patent should be read with this eorreetion thereiri tha the same may Conform to the record of the case in the Patent Ofliee;

Signed and seiled this 1st day of July, A D 1913.

we] i l C. (1. BILLINGS.

said body and a projection in said cap intel-locking tive rotation.

7. In a. socket constructlon, a, cep, a r ng 5 movably secured therein end'an insulatinglining secured to said mug and therewith. 7

8.111 a socket construction, a cap, a rlng iand an insudetachably secured in said ca rmg and re- 10 with said notch to prevent role lating lining secured to sai movable therewith. v

FREDERIG BARB. v V Witnesses: I Y

Rom. S. ALLYN, E. BRADFORD.

movable 1t ishereby certified that in Letters Patent No. 1,064,424, ,gmnted-June 10, I

1913, upon the application of Frede1'ic;Bar1' of New York, N. Y., for an improvement in Socket Construction, au'error appears iii the printedspecification requiring correctiou as follows: Page 2, li'ne 44, for the wordfremoved readrernovable;

and that the said Letters Patent should be read with this eorreetion thereiri tha the same may Conform to the record of the case in the Patent Ofliee;

Signed and seiled this 1st day of July, A D 1913.

we] i l C. (1. BILLINGS. 

